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A comment on Powering up a module from the IBM 604: an electronic calculator from 1948.

Re:Powering up a module from the IBM 604: an electronic calc... by ChocMontePy on Sunday June 07, 2026 @05:33PM (#48438794)
My favorite part was a footnote: Footnote 2 specifically. I'd always wondered how plugboards worked and the footnote and the linked pdf gave me some sort of idea.
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